Warm-Season Vegetable

When to Plant Tomatoes in Vermont

America's favorite garden vegetable (technically a fruit). Nothing beats a sun-warmed tomato straight off the vine.

The Short Answer

In Vermont, tomatoes planting dates vary by region. In Northern Vermont, your average last frost is around May 20 - Jun 5, while Southern Vermont sees its last frost around May 5 - May 20. Since tomatoes are frost-sensitive, start seeds indoors 6 weeks before your last frost, then transplant outside 2 weeks after frost danger has passed. Rocky, acidic soils typical of New England. Glacial deposits. Thin mountain soils. Raised beds very popular.

Vermont Frost Dates

Your planting dates depend on which part of Vermont you're in. Here are the frost date ranges by region:

Region Zones Last Frost (Spring) First Frost (Fall)
Northern Vermont 3b, 4a May 20 - Jun 5 Sep 5 - Sep 20
Central Vermont 4a, 4b, 5a May 10 - May 25 Sep 15 - Oct 1
Southern Vermont 4b, 5a, 5b May 5 - May 20 Sep 20 - Oct 5

Tomatoes Planting Schedule for Vermont

Northern Vermont (Zones 3b, 4a)

Average last frost: May 20 - Jun 5 · Average first frost: Sep 5 - Sep 20

Start Seeds Indoors
6 wks before frost
Transplant Outside
2 wks after frost
Direct Sow
2 wks after frost

Central Vermont (Zones 4a, 4b, 5a)

Average last frost: May 10 - May 25 · Average first frost: Sep 15 - Oct 1

Start Seeds Indoors
6 wks before frost
Transplant Outside
2 wks after frost
Direct Sow
2 wks after frost

Southern Vermont (Zones 4b, 5a, 5b)

Average last frost: May 5 - May 20 · Average first frost: Sep 20 - Oct 5

Start Seeds Indoors
6 wks before frost
Transplant Outside
2 wks after frost
Direct Sow
2 wks after frost

Growing Tomatoes in Vermont

Tomatoes in Vermont's Climate

In cold climates with 120-160 frost-free days, tomatoes demand an aggressive indoor start 6-8 weeks before your last frost. Choose short-season varieties that mature in 55-65 days — Stupice, Sub Arctic Plenty, and Glacier are bred for regions exactly like yours. Black plastic mulch can raise soil temperature by 10-15°F, and floating row cover over transplants during cool June nights adds critical warmth. Your goal is getting ripe tomatoes before September frost — every warm day counts.

Soil Considerations for Vermont

Rocky, acidic soils typical of New England. Glacial deposits. Thin mountain soils. Raised beds very popular. Make sure soil has warmed to at least 60°F before planting tomatoes outside.

Vermont Climate & Growing Season

Short growing season. Cold winters. Cool summers. Long summer days help compensate. Season extension techniques valuable. Tomatoes cannot tolerate any frost, so wait until all frost danger has passed before transplanting outside. Watch local forecasts carefully in spring.

Growing season length varies across Vermont: Northern Vermont (3b, 4a) has a last frost around May 20 - Jun 5, while Southern Vermont (4b, 5a, 5b) sees frost end around May 5 - May 20. This difference matters for tomatoes — transplant timing shifts by several weeks across the state.

Growing Tips

Pinch off suckers for indeterminate varieties. Stake or cage for best results. Water at the base, not overhead, to prevent blight.

Companion Planting

Plant tomatoes alongside these companions for better growth:

Basil Carrots Peppers Marigolds

Keep tomatoes away from:

Brassicas Fennel Dill

The Bottom Line

Tomatoes can be grown successfully across Vermont, but your exact planting dates depend on which region you're in. Northern Vermont gardeners should plan around a May 20 - Jun 5 last frost, while those in Southern Vermont can typically plant earlier. For exact dates based on your zip code, use our free planting date finder.

Related Guides

Tomatoes Growing Guide National planting guide with all states Vermont Planting Calendar All plants for Vermont Tomatoes in Alabama Alabama planting dates Tomatoes in Alaska Alaska planting dates Tomatoes in Arizona Arizona planting dates Tomatoes in Arkansas Arkansas planting dates
Note: All dates are based on NOAA 30-year Climate Normals and represent historical averages, not predictions for any specific year. Always check your local weather forecast before planting frost-sensitive crops. Learn about our data sources.

Last reviewed: March 29, 2026

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